Arizona prosecutors filed criminal charges against Kalshi, a federally regulated prediction market, accusing the platform of operating an illegal gambling operation within state borders, setting up a legal test case over whether states can prosecute businesses already approved by federal regulators.
The charges, filed Tuesday in Maricopa County Superior Court, mark the first criminal prosecution of a prediction market platform that holds approval from the Commodity Futures Trading Commission to operate nationwide. Legal experts say the case could have implications far beyond political betting, potentially affecting everything from agricultural futures markets to corporate event contracts.
Arizona Attorney General Kris Mayes announced the charges at a news conference in Phoenix, arguing that Kalshi's markets on political outcomes constitute illegal gambling under state law regardless of federal approval. "When Arizonans are placing bets on election results and political events, that's gambling—plain and simple," Mayes said. "Our gambling laws exist to protect consumers, and they apply to everyone operating in this state."
Kalshi, which allows users to trade contracts on the outcomes of future events ranging from economic indicators to political races, pushed back forcefully against the charges. "We are a federally regulated derivatives exchange, not a gambling platform," said Tarek Mansour, the company's CEO and co-founder, in a statement. "This prosecution represents a fundamental misunderstanding of financial regulation and threatens to undermine decades of settled federal authority over commodity markets."
At the heart of the case is a question of jurisdiction that Washington lawyers say could end up before the Supreme Court: Can states use their gambling laws to effectively ban activities that federal agencies have explicitly approved?
